CI: pin s3fs for Windows py37_np18 on 1.1.x (#36035)

Author: simonjayhawkins

ci/deps/azure-windows-37.yaml

@@ -29,7 +29,7 @@ dependencies:
   - pytables
   - python-dateutil
   - pytz
-  - s3fs>=0.4.0
+  - s3fs>=0.4.0,<0.5.0
   - scipy
   - sqlalchemy
   - xlrd